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A telephone is essential. What many people think necessary is not necessary at all. You would not use a telephone unless you were in a hurry. A car is essential for a taxi-driver.
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different people have different ideas about the telephone high income is the precondition for the use of telephone telephone is essential only to those people whose career depends on it working people need a telephone
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different people have different ideas about the telephone high income is the precondition for the use of telephone telephone is essential only to those people whose career depends on it working people need a telephone
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A telephone is essential. What many people think necessary is not necessary at all. You would not use a telephone unless you were in a hurry. A car is essential for a taxi-driver.